<?php

//数据导入，导出
class import extends admin{
	
	
	/**
	 *  数据导入
	 * @param string $file excel文件
	 * @param string $sheet
	 * @return string   返回解析数据
	 * @throws PHPExcel_Exception
	 * @throws PHPExcel_Reader_Exception
	 */
	function importExecl($file='', $sheet=0){
		$file = iconv("utf-8", "gb2312", $file);   //转码
		if(empty($file) OR !file_exists($file)) {
			die('file not exists!');
		}
		include('./source/lib/class/Excel/PHPExcel.php');  //引入PHP EXCEL类
		$objRead = new PHPExcel_Reader_Excel2007();   //建立reader对象
		if(!$objRead->canRead($file)){
			$objRead = new PHPExcel_Reader_Excel5();
			if(!$objRead->canRead($file)){
				die('No Excel!');
			}
		}
	
		$cellName = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'AA', 'AB', 'AC', 'AD', 'AE', 'AF', 'AG', 'AH', 'AI', 'AJ', 'AK', 'AL', 'AM', 'AN', 'AO', 'AP', 'AQ', 'AR', 'AS', 'AT', 'AU', 'AV', 'AW', 'AX', 'AY', 'AZ');
	
		$obj = $objRead->load($file);  //建立excel对象
		$currSheet = $obj->getSheet($sheet);   //获取指定的sheet表
		$columnH = $currSheet->getHighestColumn();   //取得最大的列号
		$columnCnt = array_search($columnH, $cellName);
		$rowCnt = $currSheet->getHighestRow();   //获取总行数
	
		$data = array();
		for($_row=1; $_row<=$rowCnt; $_row++){  //读取内容
			for($_column=0; $_column<=$columnCnt; $_column++){
				$cellId = $cellName[$_column].$_row;
				$cellValue = $currSheet->getCell($cellId)->getValue();
				//$cellValue = $currSheet->getCell($cellId)->getCalculatedValue();  #获取公式计算的值
				if($cellValue instanceof PHPExcel_RichText){   //富文本转换字符串
					$cellValue = $cellValue->__toString();
				}
	
				$data[$_row][$cellName[$_column]] = $cellValue;
			}
		}
	
		return $data;
	}	
	
	
	/**
	 * 保存图片
	 * @author limin  2013-07-01  PM 19:48:00
	 * @param string $var 表单名
	 * @param string $item 登记上传图片时的项目id
	 *
	 */
	public function save_file($var='xls'){
		global $_site;
		//如果是post提交
		$size = $_site->site_config['site']['upload_pic_size'] * 1024 * 1024;
		$path = "/{$_site->site_config['site']['upload_dir']}/file/";
		
		$name = time() . rand(1000,9999);		
		$result = $_site->_file()->upload_file($var, $_site->_root() . $path, $size, true, $name);
		
		if(!$result)return false;

		return './'.$path."/".$result['name'];		
	}	
	
	
	
}

